﻿#include "math.h"
main()
{void f();
 int i,t,a[3],b[3];
 printf("The possible perfect squares combinations are:\n");
 for(i=11;i<=31;i++)
   for(t=11;t<=31;t++)
   {f(i*i,a);
    f(t*t,b);
    if(sqrt(a[0]*10+b[0])==(int)sqrt(a[0]*10+b[0])
         &&sqrt(a[1]*10+b[1])==(int)sqrt(a[1]*10+b[1])
         &&sqrt(a[2]*10+b[2])==(int)sqrt(a[2]*10+b[2]))

       printf(" %d and %d\n",i*i,t*t);
   }
}	   	   	 	     
void f(n,s)
  int n,*s;
 {int k;
  for(k=1000;k>=10;s++)
  { *s=(n%k)/(k/10);
      k/=10;
  }
}	   	   	 	     
